#include <stdio.h>
#include "add.h"
#include "del.h"
#include "mul.h"
#include "div.h"

int main(void)
{
     float num1 = add(2.0,3.1);
    float num2 = delete(2.0,3.1);
    float num3 = multify(2.0,3.1);
    float num4 = division(2.0,3.1);
    printf("%f\n%f\n%f\n%f\n",num1,num2,num3,num4);
}